#B1B110
Closest named color: Mustard Green (#A8B504). oklch(73.6% 0.158 109.7), rgb(177, 177, 16).
Aa
Black text reads best on this color (9.16:1).
About this color
#B1B110 is a medium-light, vivid yellow. In OKLCH its lightness is 74%, its chroma 0.158 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Mustard Green (#A8B504), ΔE 0.017 away. Black text reads best on it, at 9.16:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Mustard Green (#A8B504) |
| Black text | 9.16:1 |
| White text | 2.29:1 |
Values
| HEX | #B1B110 |
| RGB | rgb(177, 177, 16) |
| HSL | hsl(60, 83%, 38%) |
| OKLCH | oklch(73.6% 0.158 109.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #B1B110 | 2.29:1 | Fails | Lc -49.9 | Large or bold text, headings |
| Black text on #B1B110 | 9.16:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #B1B110 text on white | 2.29:1 | Fails | Lc 45.0 | Large or bold text, headings |
| #B1B110 text on black | 9.16:1 | AAA | Lc -57.1 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F6F6EC
oklch(97% 0.013 106.6)
-
Step 100
100
#EBECD6
oklch(93.6% 0.029 109.1)
-
Step 200
200
#DBDDB4
oklch(88.6% 0.054 109.8)
-
Step 300
300
#C4C67A
oklch(80.8% 0.098 109.7)
-
Step 400
400 (this color)
#B1B110
oklch(73.6% 0.158 109.7)
-
Step 500
500
#909000
oklch(63.2% 0.138 109.8)
-
Step 600
600
#797800
oklch(55.5% 0.121 109.2)
-
Step 700
700
#656500
oklch(49.1% 0.107 109.8)
-
Step 800
800
#535300
oklch(42.8% 0.093 109.8)
-
Step 900
900
#454500
oklch(37.8% 0.082 109.8)
-
Step 950
950
#292800
oklch(26.9% 0.058 108.3)
#B1B110 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #C0A900 | 0.029 |
| Deuteranopia (no green cones) | #C2AD25 | 0.030 |
| Tritanopia (no blue cones) | #BEA597 | 0.142 |
| Achromatopsia (no color) | #ABABAB | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1B110
#B1B110
oklch(73.6% 0.158 109.7)
- #A998FF
#A998FF
oklch(73.6% 0.147 289.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #B1B110, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Green #A8B504 ΔE 0.017
- Muddy Yellow #BFAC05 ΔE 0.023
- Olive Yellow #C2B709 ΔE 0.031
- Pea #A4BF20 ΔE 0.038
- Bright Olive #9CBB04 ΔE 0.039
- Mustard #CEB301 ΔE 0.044
- Avocado #90B134 ΔE 0.044
- Icky Green #8FAE22 ΔE 0.048
Use #B1B110 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.